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Finding the Fourth Proportional to 92,433.52, 138,639.56 and 25,878.97

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Solution

The fourth proportional to 92,433.52, 138,639.56 and 25,878.97 is: 38,815.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,433.52 : 138,639.56 = 25,878.97 : x
  2. Step 2: Convert to fraction form
    92,433.52/138,639.56 = 25,878.97/x
  3. Step 3: Cross multiply
    92,433.52x = 138,639.56 × 25,878.97
  4. Step 4: Simplify right side
    92,433.52x = 3,587,848,732.15
  5. Step 5: Solve for x
    x = 3,587,848,732.15/92,433.52
  6. Step 6: Final answer
    x = 38,815.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.